package demo;

import java.util.Scanner;

public class java {public static void main(String[] args) {
    				int num1 ;
    				int num2 ;
    				int temp;
    				
    				
    				
    				Scanner scan = new Scanner(System.in);
    				
    				System.out.println("2");
    				num1 = scan.nextInt();
    				
    				
    				System.out.println("20");
    				num2 = scan.nextInt();
    				
    				System.out.println("2  20");
    				System.out.println("num1="+ num2);
    				System.out.println("num2="+ num1);
    				
	
	
}	
}